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5. Topsoil and Revegetation Plan <br /> This section describes topsoil replacement and revegetation on interspersed portions of <br /> rangeland on the site. These areas can be seen within the industrial/commercial post mine land <br /> use on Map F-1. <br /> Throughout the reclamation process, topsoil will be replaced to a depth of 0-24 inches (7 inches <br /> on average) on all disturbed areas reclaimed to rangeland or will be stored in the permanent <br /> topsoil berms. Topsoil available from stripping that is in excess of that needed for reclamation <br /> will be sold or permanently stored in the existing topsoil berms. <br /> The seed mix chosen for rangeland revegetation of the site was selected because it will <br /> establish a diverse, effective, and long-lasting vegetative cover that is capable of self- <br /> regeneration without continued dependence on irrigation, soil amendments or fertilizer, and <br /> provides equal or better coverage than the existing vegetation of the surrounding area. <br /> The revegetation plan considers environmental factors such as seasonal patterns of <br /> precipitation; temperature and wind; soil texture and fertility; slope stability; and direction of <br /> slope faces to provide the greatest probability of success with plant establishment and <br /> vegetation development. <br /> Revegetation will be accomplished using the seed mix that was approved for the Carol Ann Pit <br /> (see Table E-2) <br /> Table E-2. Approved Seed Mixture <br /> Species Pounds <br /> Acre(drilled rate) <br /> Smooth Brrnm <br /> 4:ttE' ... <br /> Ephraim Crested Wheatgrass 3.0 <br /> Barton Western Wheatgrao,.; 4.0 <br /> Indian Ricegrass 3.5 <br /> 5i eambankwbea" 3wS. <br /> 18 pls/acre <br /> Certified weed free hay, not straw mulch, will also be crimped in place at the rate of 3000 to <br /> 4000 Ibs/acre. The disturbed area not converted to industrial/commercial use will be reclaimed <br /> to rangeland. <br /> To ensure the establishment of a diverse and long-lasting vegetative cover, the Operator will <br /> employ site preparation techniques and protection. The soil shall be mechanically conditioned <br /> using disks and rippers, mulch will be spread after seeding, and temporary irrigation may be <br /> employed to ensure germination of as many seedlings as possible. Drill seeding will be utilized <br /> throughout the site. In the even broadcast seeding is required, it will be at double the drill <br /> seeding rate. <br /> Furrows from disking will be left in the topsoil to provide moisture concentration and shade <br /> areas to promote better conditions for successful vegetation establishment. Because dust <br /> Carol Ann Pit E-3 ® Lewicki&Associates <br /> November 2021 <br />